. >> thank you, mike. >>> many parts of the u.s. feeling the effects of that arctic blast, which is making for dangerous conditions on the roads. the freeze began last weekend in the midwest before spreading east. when factoring in the windchill, temperatures plummeted to negative 50 degrees in some parts. but the cold weather should ease off early this week in many places. negative 50 degrees, gwen? i don't think i have a thermometer that goes that low. >> i wouldn't want to hear about that. unbelievable. not that cold here. definitely cold last night and chilly start to today. let's look at our numbers for yesterday. we were below the seasonal afternoon as well. 37 at reagan national. 33 dulles. and 34 at bwi marshall. we should be into the low 40s. that didn't happen. and right now we're at 28 at national. 25 at dulles. and 24 degrees in baltimore. as we take a look at what we can expect, not too bad in terms of our sky conditions as far as today is concerned. we are actually seeing a few clouds that are rolling in across the are